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1942392 = 23380933
BaseRepresentation
bin111011010001101111000
310122200110110
413122031320
5444124032
6105344320
722336644
oct7321570
93580413
101942392
111107391
127980a0
1353015a
14387c24
152857cc
hex1da378

1942392 has 16 divisors (see below), whose sum is σ = 4856040. Its totient is φ = 647456.

The previous prime is 1942387. The next prime is 1942399. The reversal of 1942392 is 2932491.

It is an Ulam number.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40443 + ... + 40490.

21942392 is an apocalyptic number.

1942392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1942392 is an abundant number, since it is smaller than the sum of its proper divisors (2913648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1942392 is a wasteful number, since it uses less digits than its factorization.

1942392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80942 (or 80938 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 1942392 is about 1393.6972411539. The cubic root of 1942392 is about 124.7706086276.

Subtracting 1942392 from its reverse (2932491), we obtain a palindrome (990099).

The spelling of 1942392 in words is "one million, nine hundred forty-two thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 80933 161866 242799 323732 485598 647464 971196 1942392